help-moving from secondary to primary!!

i have decided i would like a change,i have been teaching in a secondary school for 12 years and would like to return to primary(my degree and training was ks2 and ks 3)
i would ideally like to teach in a nursery or reception.
what i am asking for really is any advice on how to do this or chat with anyone who has done it.
thanks in advance for your help.